首先,假设如下SQL表中有数据username=test1,passwd=test1,address=test1

CREATE TABLE `login` (
  `username` varchar(10) default NULL,
  `passwd` varchar(10) default NULL,
  `address` varchar(10) default NULL
) ENGINE=InnoDB DEFAULT CHARSET=gb2312;

 

配置文件:

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" >
<beans>
 
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
   
<property name="driverClassName">
     
<value>com.mysql.jdbc.Driver</value>
   
</property>
   
<property name="url">
     
<value>jdbc:mysql://localhost:3306/javaee</value>
   
</property>
   
<property name="username">
     
<value>root</value>
   
</property>
   
<property name="password">
     
<value>1234</value>
   
</property>
 
</bean>
 
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
   
<property name="dataSource">
     
<ref local="dataSource"/>
   
</property>
 
</bean>

<bean id="personDAO" class="SpringJDBCSupport.ReadData.PersonDAO">
  
<property name="jdbcTemplate">
    
<ref local="jdbcTemplate"/>
  
</property>
</bean> 
</beans>

 JavaBean:

 

package SpringJDBCSupport.ReadData;
import com.mysql.jdbc.Driver;
public class Person {
  
private String name;
  
private String password;
  
private String address;
  
public Person(){
      
  }

  
public Person(String name,String password,String address){
      
this.name=name;
      
this.password=password;
      
this.address=address;
  }

public String getAddress() {
    
return address;
}

public void setAddress(String address) {
    
this.address = address;
}

public String getName() {
    
return name;
}

public void setName(String name) {
    
this.name = name;
}

public String getPassword() {
    
return password;
}

public void setPassword(String password) {
    
this.password = password;
}

public String toString(){
    
return this.getName()+"-"+this.getPassword()+"-"+this.getAddress();
}

}

 

DAO:

其中getPersonByRowCallbackHandler方法根据username获得person对象

package SpringJDBCSupport.ReadData;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.List;

import org.springframework.jdbc.core.BatchPreparedStatementSetter;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowCallbackHandler;

public class PersonDAO {
  
private JdbcTemplate jdbcTemplate;

public JdbcTemplate getJdbcTemplate() {
    
return jdbcTemplate;
}


public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
    
this.jdbcTemplate = jdbcTemplate;
}


public int insertPersonUseUpdate(Person person){
    String sql
="insert into login values(?,?,?)";
    Object[] params
=new Object[]{
            person.getName(),
            person.getPassword(),
            person.getAddress()
    }
;
    
return this.getJdbcTemplate().update(sql,params);
}

public int insertPersonUseExecute(Person person){
    String sql
="insert into login values(?,?,?)";
    Object[] params
=new Object[]{
            person.getName(),
            person.getPassword(),
            person.getAddress()
    }
;
    
int[] types=new int[]{
            Types.VARCHAR,
            Types.VARCHAR,
            Types.VARCHAR
    }
;
    
return this.getJdbcTemplate().update(sql,params,types);
}

public int[] updatePersonUseBatchUpdate( final List persons){
    String sql
="insert into login values(?,?,?)";
    BatchPreparedStatementSetter setter
=null;
    setter
=new BatchPreparedStatementSetter(){
        
public int getBatchSize(){
            
return persons.size();
        }

        
public void setValues(PreparedStatement ps,int index) throws SQLException{
            Person person
=(Person)persons.get(index);
            ps.setString(
1,person.getName());
            ps.setString(
2,person.getPassword());
            ps.setString(
3,person.getAddress());
        }

    }
;
    
return this.getJdbcTemplate().batchUpdate(sql,setter);
}


public Person getPersonByRowCallbackHandler(String username){

    String sql
="select * from login where username=?";
    
final Person person=new Person();
    
final Object params[]=new Object[]{username};
    
this.getJdbcTemplate().query(sql,params,new RowCallbackHandler(){
        
public void processRow(ResultSet rs)throws SQLException{
            person.setName(rs.getString(
"username"));
            person.setPassword(rs.getString(
"passwd"));
            person.setAddress(rs.getString(
"address"));
        }

    }
);
    
return person;
}

  
}

 

测试代码:

 

package SpringJDBCSupport.ReadData;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;

public class TestJDBCTemplate {

    
public static String filePath="";
    
public static BeanFactory factory=null;
    
public static void main(String[] args) {
        filePath
=System.getProperty("user.dir")+File.separator+"SpringJDBCSupport"+File.separator+"ReadData"+File.separator+"hello.xml";
        factory
=new XmlBeanFactory(new FileSystemResource(filePath));
        PersonDAO personDAO
=(PersonDAO)factory.getBean("personDAO");
        
/*
         * 准备数据
         
*/

        Person p1
=new Person("test1","test1","test1");
        Person p2
=new Person("test2","test2","test2");
        Person p3
=new Person("test3","test3","test3");
        Person p4
=new Person("test4","test4","test4");
        Person p5
=new Person("test5","test5","test5");
        List persons
=new ArrayList();
        persons.add(p3);
        persons.add(p4);
        persons.add(p5);
        
//使用jdbcTemplate.update方式
    
//    personDAO.insertPersonUseUpdate(p1);
        
//使用jdbcTemplate.execute方式
    
//    personDAO.insertPersonUseExecute(p2);
    
//    //使用jdbcTemplate批处理方式
    
//    personDAO.updatePersonUseBatchUpdate(persons);
        
        
//使用RowCallbackHandler执行一次查询,并打印person信息
        System.out.println(personDAO.getPersonByRowCallbackHandler("test1"));
    }

    
    

}

 

运行结果:

test1-test1-test1